package Test1;

import java.util.Arrays;

public class Main {
    public static void main(String[] args){
        int[] arr1 = null;
        System.out.println(Test1.toString(arr1));
        int[] arr2 = new int[0];
        System.out.println(Test1.toString(arr2));
        int[] arr = {1,2,3,4,5};
        System.out.println(Test1.toString(arr));
    }
}
